Needed an inexpensive device to measure wind speed this worked well. Nice unit to check performance of air handling and ventilation units.
Can this unit measure the cfm of vacuum? The range would be from 200-600 cfm on carpet cleaning machines Sorry I cant help you on that one. what is Velocity range of this product .4 to 30 meters/second (80 to 5906 ft/min). (From the Extech website/PDF file).